Top browser based games - Sci-Fi List 1

#1

Old Light

A space empire building. Being with one small star system and over weeks you'll become a massive empire in a galaxy shared with other people

Voted 184 in October

10 1.6k

#2

Core Exiles

Core Exiles is a 2D text PBBG based Epic Space game. You play the part of the Captain of a small vessel cast out into the Galaxy to make your fame and fortune. Unlike many browser based games CE is a ...

Voted 271 in October

9k 1.6m

Rewards 19

#3

Deuteria

Deuteria is a live OGame-style browser game. Colonise planets, build fleets, and fight for rank in universe Antares. Play in the browser, no download.

Voted 382 in October

0 1.8k

#4

Project Zero-G

Zero-G: A persistent 1:1 Solar System in your browser. Master real Newtonian physics, mine asteroids, refine and synthesize components in a player-driven economy, and fight aliens with your crew. Buil...

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Voted 92 in October

0 5.2k

10

#5

Galactica the roots

Tick-based sci-fi strategy in your browser: the world advances once every 60 minutes, so the winner is not whoever is awake at 3am. Eight playable species, each with its own tech tree, ship line and c...

Voted 434 in October

0 1.3k

1

#6

VOID SECTOR

Choose your faction. Mine rare ores, upgrade your ship and fight alien fleets in a shared universe. Four factions, alliances and player rewards - free to play in your browser....

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Voted 43 in October

0 1.5k

Rewards 3

#7

Interstellar Empires

Persistent space strategy MMO where you build a base, command fleets, form alliances, and fight across galaxy map and portal network

Voted 105 in October

2 1.4k

1

#8 NEW

Nebula Dominion

New universe on 23 Oct 2026 at 20:00 Italian time (18:00 UTC): everyone starts from zero. Free space strategy in your browser, PC and phone. 9 languages, no download, no purchases, vote rewards in gam...

Recently added

0 40

#9

Kolonie Kepler-7

Browser-based space empire builder, in German. Expand your colony, research technologies, build fleets and share one galaxy with every other player. Production keeps running while you are offline. Fre...

Voted 29 in October

0 839

#10

SpaceMMO

A whole galaxy within reach. Explore, build your own stations and find the richest deposits, free and right in your browser!

Voted 10 in October

0 73

#11

Forged Space

Forged Space is a modern sci-fi browser-based space game focused on exploration, progression, and long-term player choice. Set in a living galaxy of star systems, factions, and resources, players take...

Voted 56 in October

682 8.8k

1

#12 NEW

Bionic Brawl Online

Bionic Brawl Online is a browser-based robot autobattler card game where interchangeable parts shape your fighting bot's stats and command deck. Build a contender, compete in the online league, a...

Recently added

0 11

#13

Outer Core

Outer-Core is a free, persistent sci-fi strategy game played entirely in your browser. Start with a single homeworld and a colony ship, then expand across the galaxy by building colonies, managing res...

2 752

#14

Ogame Private Corrado Game

Conquer the universe with Pride Sharpen your skills playing in this High Speed Ogame-style server with 1000+ players. New Skin/Rapid Harvest/DM rewards for Achievements and Voting/Edit Planet/Resource...

251 53.7k

1

#15

PVP.FARM

PVP.FARM is a free browser-based sci-fi 3D MMORPG about combat mechs and persistent large-scale faction PvP in a seamless open world, playable on desktop and mobile with no mobs, auto-battle, level gr...

0 1k

1

#16

Alien Warfront

Free PvP browser MMO — but you are the alien invader, not the hero. Hatch a warlord, build a drone swarm, run 60+ invasion missions, conquer planets, loot rival players, and join a hive to crush wor...

1 21

#17

CozmoGame

OGame-inspired persistent space strategy MMO. Build your empire, research technologies, command fleets, and wage war across shared universes. Free to play, no download, fully browser-based....

0 10

#18

Origins Return

Origins Return is a free intergalactic simulation game by browser... A Great unique strategy game which consists in developping your homeplanet to then expand all throughout the galaxy. Fully custom...

41 26.3k

Rewards 10

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